<!DOCTYPE html>
<html>
<head>
  <style>
    body {
      background-color: #4CAF50;
      color: white;
      margin: 16px;
    }
  </style>
</head>
<body>
  <h1>Yeah! I'm succesfully embedded!</h1>
  <h2>How about sending some data now? Let's try!</h2>
  <h2><pre>{"message": "camera"}</pre></h2>
</body>
</html>
